No such term as "your 86th".
If something is "86ed", like on a restaurant menu, it means it is no longer available.
They have this new invention called GOOGLE. Try it next time instead of asking stupid questions.
Or it could mean your 86th birthday.
"You're 86ed" means you are being thrown out or refused service. One source from 1933 says it was soda fountain shorthand for "we're all out".
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Other people asked questions on various topics, and are still waiting for answer. Would be great if you can take a sec and answer them